Uncover the variety of activity, both human and natural, that occurs on the slopes of active volcanoes. Take a terrifying descent into the crater of one of the world’s most dangerous volcanoes alive today. James Naughton narrates.

Experience the natural world through the eyes of the Vikings. From the killer whales of the North Sea to the volcanic mounts of Iceland, see the deep history and cultural respect the Vikings had with the land and sea. Ewan McGregor narrates.

Travel around the world with anthropologist Niobe Thompson to uncover the history of mankind’s relationship with the horse. Discover the habits and biology of these majestic animals and ride along with the world’s last nomadic tribes.

In the frigid Indian Himalayas, people manage to eke out a living alongside one of Asia’s most elusive cats: the snow leopard. Explore this fragile relationship through the eyes of Tashi, a local goat herder, and learn how his village has partnered with the Snow Leopard Trust to find ways to both live with and save one of the rarest cats on Earth.

Biologist Jack Hogg has been studying a herd of wild bighorn sheep on Montana’s National Bison Range for more than 35 years. When Jack’s herd gets infected with a deadly form of pneumonia, he goes in search of answers. The film uncovers the frightening truth about a pervasive epidemic that threatens one of North America’s most iconic animals.

Join Lisa Dabek and her team with Woodland Park Zoo’s Tree Kangaroo Conservation Program as they journey into the remote cloud forests of Papua New Guinea. Meet one of the most elusive creatures you will ever see in the wild – the Matschie’s tree kangaroo. See how the local people are helping to protect this rare marsupial and its forest home.

Witness the incredible journey of newborn polar bear cubs as they leave the safety of their den for the first time. Bravely led by their mother, the cubs must make the perilous 400-mile Arctic trek to the sea to feed.